Q. Which type of electromagnetic radiation is used to sterilise food?

A
Alpha ray
B
Beta ray
C
Gamma ray
D
Nine of these
Solution:

Gamma rays are ionizing electromagnetic radiation, obtained by the decay of an atomic nucleus. Gamma rays are more penetrating in matter and can damage living cells to a great extent. Gamma rays are used in medicine (radiotherapy), industry (sterilization and disinfection) and the nuclear industry.

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